The Douglas DC-8 of United Airlines Flight 173 was en route from Denver to Portland International Airport on Wednesday, December 28, 1978. A landing gear malfunction forced the plane to circle the Portland area while the problem was investigated by the crew. The big jet ran out fuel within an hour and crash landed in a sparsely populated area near 157th and East Burnside, killing 10 and seriously injuring 24 of the 189 passengers who were aboard the aircraft.